What is the recommended best material for fastening tiles?

The recommended best material for fastening tiles is electro-galvanized fasteners. These fasteners are coated with a layer of zinc, which provides excellent corrosion resistance. This is crucial in tile installations, particularly in areas subject to moisture, such as kitchens and bathrooms. The corrosion resistance helps to ensure a long-lasting hold without the deterioration that can occur with other materials, thus preventing tile failure over time.

While stainless steel is known for its corrosion resistance and strength, it is often more expensive and may not be necessary for every tile installation, especially in non-exposed applications. Plastic fasteners, although lightweight and resistant to rust, may not provide the necessary strength and durability for securely fastening tiles, particularly in high-stress areas. Aluminum is lightweight and resistant to rust as well, but it can corrode in certain environments, especially where moisture is present. Therefore, electro-galvanized fasteners strike a balance between cost, corrosion resistance, and strength, making them the preferred choice in many tile installation scenarios.